CVE-2026-123492

SiYuan versions prior to 3.8.9 are vulnerable to a nil pointer dereference within the privateCacheMiddleware component. This flaw allows authenticated attackers possessing a valid API token to crash the kernel by sending a resources/read request during an initialized MCP session. Specifically, at...

EUVD-2026-118292

SiYuan before 3.8.9 contains a nil pointer dereference vulnerability in privateCacheMiddleware that allows authenticated attackers to crash the kernel by reading nonexistent MCP resources. Attackers with a valid API token can send a resources/read request in an initialized MCP session, causing a...

CVE-2026-123492: siyuan-note siyuan: SiYuan before 3.8.9 contains a nil pointer dereference vulnerability in privateCacheMiddleware that allows…

SiYuan before 3.8.9 contains a nil pointer dereference vulnerability in privateCacheMiddleware that allows authenticated attackers to crash the kernel by reading nonexistent MCP resources. Attackers with a valid API token can send a resources/read request in an initialized MCP session, causing a...